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Greater music dynamics in shoebox-shaped concert halls

Date:
March 3, 2014
Source:
Aalto University
Summary:
Researchers in Finland have found that music is perceived to have greater dynamic range in rectangular, shoebox shaped concert halls than in other types of halls.

Berlin Philharmonic.
Credit: Image courtesy of Aalto University

Aalto University researchers have found that music is perceived to have greater dynamic range in rectangular, shoebox shaped concert halls than in other types of halls.

From a shoebox hall's sidewalls, strong reflected sound arrives to listeners' ears from directions where human directional hearing sensitivity is the highest. Sound reflected from the sidewalls strengthens the especially strong higher overtones that players produce during a whole orchestra fortissimo, but not during pianissimo passages. Therefore, such a concert hall shape affects perceived dynamic range even though rooms itself amplify all passages the same amount.

"Dynamic expression is an inseparable part of music. For this reason, a concert hall's ability to transmit the orchestra's played dynamics is one of the most important criteria of good acoustics. Our research is the first that explains how halls influence perception of dynamic expression," Dr. Jukka Pätynen says.

The importance of early lateral reflections to good concert hall acoustics has been known for decades. Earlier, they were believed to widen the perceived overall sound image and increase the perceived closeness of the sound. Now, the Proceedings of The National Academy of Sciences of The United States of America has published an article that expands our understanding of how perception of dynamic musical content depends on concert hall acoustics. The findings will lead to better concert hall designs than ever before.

Dr. Jukka Pätynen works as a post-doctoral researcher in Tapio Lokki's Virtual Acoustics research group. The group aims to understand how room acoustics affect sound signals, and how people perceive room acoustic properties. Research focuses on improved prediction and understanding of concert halls and other acoustically demanding spaces. Notably, the concert hall acoustic research group has developed methods, unique in the world, that are described in a second article that was just featured on the cover of Physics Today.


Story Source:

The above story is based on materials provided by Aalto University. Note: Materials may be edited for content and length.


Journal References:

  1. Jukka Pätynen, Sakari Tervo, Philip W. Robinson, and Tapio Lokki. Concert halls with strong lateral reflections enhance musical dynamics. Proceedings of The National Academy of Sciences, 2014; DOI: 10.1073/pnas.1319976111
  2. Tapio Lokki. Tasting music like wine: Sensory evaluation of concert halls. Physics Today, 2014; 67 (1): 27 DOI: 10.1063/PT.3.2242

Cite This Page:

Aalto University. "Greater music dynamics in shoebox-shaped concert halls." ScienceDaily. ScienceDaily, 3 March 2014. <www.sciencedaily.com/releases/2014/03/140303143407.htm>.
Aalto University. (2014, March 3). Greater music dynamics in shoebox-shaped concert halls. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2014/03/140303143407.htm
Aalto University. "Greater music dynamics in shoebox-shaped concert halls." ScienceDaily. www.sciencedaily.com/releases/2014/03/140303143407.htm (accessed July 24, 2014).

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